CSS3 ?????
CSS3 ?????
CSS3 ?????? ???? ? ? ??? ??? ?? ??? ???? ??? ? ????.
???? ??? ??? ???? ???? ???? ????. ??? CSS3 ?????? ???? ???? ???? ??? ???? ?? ? ????. ?? ?????? ????? ?? ????? ??? ? ?????? ?? ??? ? ? ????.
CSS3? ? ?? ??? ?????? ?????.
?? ????? - ???/?/??/???/???
??? ????? - ???? ??
CSS3 ?? ?????
?? ?????? ???? ? ? ??? ?? ??? ???? ???. ?? ??? ???? ??? ????? ?????. ??? ???? ??(?? ??)? ??? ? ????.
?? ?????? ?:
Syntax
background: ??-?????(??, ?? ??1, ?? ??2, ...);
?? ????? - ????? ?????(???)
?? ?? ??? ???? ?? ?????? ?????. ????? ???? ??? ????? ??:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 200px;
background: -webkit-linear-gradient(red, blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(red, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>線性漸變 - 從上到下</h3>
<p>從頂部開始的線性漸變。起點(diǎn)是紅色，慢慢過渡到藍(lán)色：</p>
<div id="grad1"></div>
</body>
</html>????? ???? ??? ???
?? ????? - ???? ?????
?? ?? ???? ???? ?? ?????? ?????. ???? ????? ??? ????? ?????.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 200px;
background: -webkit-linear-gradient(left, red , blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(right, red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(right, red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(to right, red , blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>線性漸變 - 從左到右</h3>
<p>從左邊開始的線性漸變。起點(diǎn)是紅色，慢慢過渡到藍(lán)色：</p>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
?? ????? - ???
?? ? ?? ?? ??? ???? ??? ?????? ?? ? ????.
?? ???? ?? ???? ????(??? ????) ?? ?????? ?????. ???? ????? ??? ????? ?????.
?
?? ??? ??? ??? ?? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 200px;
background: -webkit-linear-gradient(left top, red , blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(bottom right, red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(bottom right, red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(to bottom right, red , blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>線性漸變 - 對(duì)角</h3>
<p>從左上角開始（到右下角）的線性漸變。起點(diǎn)是紅色，慢慢過渡到藍(lán)色：</p>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
??? ?????
????? ??? ? ???? ????? , ?? ??? ??(??, ??, ???, ??, ??? ?? ?) ?? ??? ??? ? ????.
Syntax
background: ??-?????(angle, color-stop1, color-stop2);
??? ???? ????? ? ??? ??? ???? ?? ?? ???? ?????. ??. ?, 0deg? ???? ?? ?????? ???, 90deg? ???? ????? ?????? ????.
??? ?? ????(Chrome, Safari, Fiefox ?)? ?? ??? ????? 0deg? ???? ????? ?????? ??? 90deg? ???? ?? ?????? ????. . ?? ?? 90 - x = y ??? x? ?? ???? y? ??? ?????.
?? ???? ?? ?????? ??? ???? ??? ?????.
?
??? ??? ?? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 100px;
background: -webkit-linear-gradient(0deg, red, blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(0deg, red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(0deg, red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(0deg, red, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad2 {
height: 100px;
background: -webkit-linear-gradient(90deg, red, blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(90deg, red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(90deg, red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(90deg, red, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad3 {
height: 100px;
background: -webkit-linear-gradient(180deg, red, blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(180deg, red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(180deg, red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(180deg, red, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad4 {
height: 100px;
background: -webkit-linear-gradient(-90deg, red, blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(-90deg, red, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(-90deg, red, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(-90deg, red, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>線性漸變 - 使用不同的角度</h3>
<div id="grad1" style="color:white;text-align:center;">0deg</div><br>
<div id="grad2" style="color:white;text-align:center;">90deg</div><br>
<div id="grad3" style="color:white;text-align:center;">180deg</div><br>
<div id="grad4" style="color:white;text-align:center;">-90deg</div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
?? ?? ?? ??
?????. ?? ?? ?? ?? ??? ???? ??? ?????.
?
?? ?? ??? ?? ??? ???? ?? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 200px;
background: -webkit-linear-gradient(red, green, blue); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(red, green, blue); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(red, green, blue); /* Firefox 3.6 - 15 */
background: linear-gradient(red, green, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad2 {
height: 200px;
background: -webkit-linear-gradient(red, orange, yellow, green, blue, indigo, violet); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(red, orange, yellow, green, blue, indigo, violet); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(red, orange, yellow, green, blue, indigo, violet); /* Firefox 3.6 - 15 */
background: linear-gradient(red, orange, yellow, green, blue, indigo, violet); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad3 {
height: 200px;
background: -webkit-linear-gradient(red 10%, green 85%, blue 90%); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(red 10%, green 85%, blue 90%); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(red 10%, green 85%, blue 90%); /* Firefox 3.6 - 15 */
background: linear-gradient(red 10%, green 85%, blue 90%); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>3 個(gè)顏色結(jié)點(diǎn)（均勻分布）</h3>
<div id="grad1"></div>
<h3>7 個(gè)顏色結(jié)點(diǎn)（均勻分布）</h3>
<div id="grad2"></div>
<h3>3 個(gè)顏色結(jié)點(diǎn)（不均勻分布）</h3>
<div id="grad3"></div>
<p><strong>注意：</strong> 當(dāng)未指定百分比時(shí)，顏色結(jié)點(diǎn)不會(huì)自動(dòng)均勻分布。</p>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???.
?? ???? ??? ??? ???? ?? ?????? ??? ??? ?????.
Example
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 55px;
background: -webkit-linear-gradient(left, red, orange, yellow, green, blue, indigo, violet); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(left, red, orange, yellow, green, blue, indigo, violet); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(left, red, orange, yellow, green, blue, indigo, violet); /* Firefox 3.6 - 15 */
background: linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<div id="grad1" style="text-align:center;margin:auto;color:#888888;font-size:40px;font-weight:bold">
漸變背景
</div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
??? ??
CSS3 ?????? ???? ????? ??? ??? ??? ? ??? ? ????.
???? ???? ?? rgba() ??? ???? ?? ??? ?????. rgba() ??? ??? ????? 0?? 1 ??? ?? ? ? ??? ??? ???? ?????. 0? ??? ???? ???? 1? ??? ????? ?????.
?? ?? ???? ???? ?? ?????? ?????. ??? ???? ???? ??? ???? ????? ??? ??:
?
???? ??? ???? ????? ?? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 200px;
background: -webkit-linear-gradient(left, rgba(255,0,0,0), rgba(255,0,0,1)); /* Safari 5.1 - 6.0 */
background: -o-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* Opera 11.1 - 12.0 */
background: -moz-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* Firefox 3.6 - 15 */
background: linear-gradient(to right, rgba(255,0,0,0), rgba(255,0,0,1)); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>線性漸變 - 透明度</h3>
<p>為了添加透明度，我們使用 rgba() 函數(shù)來定義顏色結(jié)點(diǎn)。rgba() 函數(shù)中的最后一個(gè)參數(shù)可以是從 0 到 1 的值，它定義了顏色的透明度：0 表示完全透明，1 表示完全不透明。</p>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
?? ?? ?????
repeating-linear-gradient() ??? ?? ?????? ???? ? ?????:
?
?? ?? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 200px;
background: -webkit-repeating-linear-gradient(red, yellow 10%, green 20%); /* Safari 5.1 - 6.0 */
background: -o-repeating-linear-gradient(red, yellow 10%, green 20%); /* Opera 11.1 - 12.0 */
background: -moz-repeating-linear-gradient(red, yellow 10%, green 20%); /* Firefox 3.6 - 15 */
background: repeating-linear-gradient(red, yellow 10%, green 20%); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>重復(fù)的線性漸變</h3>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
CSS3 ??? ?????
??? ?????? ???? ?????.
??? ?????? ????? ?? ? ?? ?? ??? ???? ???. ?? ??? ???? ??? ????? ?????. ??? ?????? ??, ??(????? ?? ??) ? ??? ??? ? ????. ????? ?????? ??? ??(???? ??)?? ?????? ??? ??(??? ??)?? ?????? ??? ?? ? ???(?? ? ???? ??)???.
??? ?????? ?
Syntax
??: ???-?????(??, ?? ??, ?? ??, ..., ??? ??);
??? ????? - ?? ??? ??? ???(???)
?
?? ??? ??? ??? ??? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 150px;
width: 200px;
background: -webkit-radial-gradient(red, green, blue); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(red, green, blue); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(red, green, blue); /* Firefox 3.6 - 15 */
background: radial-gradient(red, green, blue); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>徑向漸變 - 顏色結(jié)點(diǎn)均勻分布</h3>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???.
?
??? ?? ??? ??? ?? ??? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 150px;
width: 200px;
background: -webkit-radial-gradient(red 5%, green 15%, blue 60%); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(red 5%, green 15%, blue 60%); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(red 5%, green 15%, blue 60%); /* Firefox 3.6 - 15 */
background: radial-gradient(red 5%, green 15%, blue 60%); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>徑向漸變 - 顏色結(jié)點(diǎn)不均勻分布</h3>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
?? ??
shape ????? ??? ?????. ? ? ?? ??? ? ????. ? ? ?? ?? ????, ??? ??? ????. ???? ?????.
?
?? ??? ?????:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 150px;
width: 200px;
background: -webkit-radial-gradient(red, yellow, green); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(red, yellow, green); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(red, yellow, green); /* Firefox 3.6 - 15 */
background: radial-gradient(red, yellow, green); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad2 {
height: 150px;
width: 200px;
background: -webkit-radial-gradient(circle, red, yellow, green); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(circle, red, yellow, green); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(circle, red, yellow, green); /* Firefox 3.6 - 15 */
background: radial-gradient(circle, red, yellow, green); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>徑向漸變 - 形狀</h3>
<p><strong>橢圓形 Ellipse（默認(rèn)）：</strong></p>
<div id="grad1"></div>
<p><strong>圓形 Circle：</strong></p>
<div id="grad2"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ???
??? ?? ??? ??
?? ????? ?????? ??? ?????. ?? ? ?? ?? ? ????.
closest-side
farthest-side
closest-corner
farthest-corner
????
?? ??? ?? ?? ???? ?? ?????:<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 150px;
width: 150px;
background: -webkit-radial-gradient(60% 55%, closest-side,blue,green,yellow,black); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(60% 55%, closest-side,blue,green,yellow,black); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(60% 55%, closest-side,blue,green,yellow,black); /* Firefox 3.6 - 15 */
background: radial-gradient(60% 55%, closest-side,blue,green,yellow,black); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad2 {
height: 150px;
width: 150px;
background: -webkit-radial-gradient(60% 55%, farthest-side,blue,green,yellow,black); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(60% 55%, farthest-side,blue,green,yellow,black); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(60% 55%, farthest-side,blue,green,yellow,black); /* Firefox 3.6 - 15 */
background: radial-gradient(60% 55%, farthest-side,blue,green,yellow,black); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad3 {
height: 150px;
width: 150px;
background: -webkit-radial-gradient(60% 55%, closest-corner,blue,green,yellow,black); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(60% 55%, closest-corner,blue,green,yellow,black); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(60% 55%, closest-corner,blue,green,yellow,black); /* Firefox 3.6 - 15 */
background: radial-gradient(60% 55%, closest-corner,blue,green,yellow,black); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
#grad4 {
height: 150px;
width: 150px;
background: -webkit-radial-gradient(60% 55%, farthest-corner,blue,green,yellow,black); /* Safari 5.1 - 6.0 */
background: -o-radial-gradient(60% 55%, farthest-corner,blue,green,yellow,black); /* Opera 11.6 - 12.0 */
background: -moz-radial-gradient(60% 55%, farthest-corner,blue,green,yellow,black); /* Firefox 3.6 - 15 */
background: radial-gradient(60% 55%, farthest-corner,blue,green,yellow,black); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>徑向漸變 - 不同尺寸大小關(guān)鍵字的使用</h3>
<p><strong>closest-side：</strong></p>
<div id="grad1"></div>
<p><strong>farthest-side：</strong></p>
<div id="grad2"></div>
<p><strong>closest-corner：</strong></p>
<div id="grad3"></div>
<p><strong>farthest-corner（默認(rèn)）：</strong></p>
<div id="grad4"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>????? ???? ??? ?????? ????? ??
??? ????? ??? ?? repeating-radial-gradient() ??:<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>php中文網(wǎng)(php.cn)</title>
<style>
#grad1 {
height: 150px;
width: 200px;
background: -webkit-repeating-radial-gradient(red, yellow 10%, green 15%); /* Safari 5.1 - 6.0 */
background: -o-repeating-radial-gradient(red, yellow 10%, green 15%); /* Opera 11.6 - 12.0 */
background: -moz-repeating-radial-gradient(red, yellow 10%, green 15%); /* Firefox 3.6 - 15 */
background: repeating-radial-gradient(red, yellow 10%, green 15%); /* 標(biāo)準(zhǔn)的語法（必須放在最后） */
}
</style>
</head>
<body>
<h3>重復(fù)的徑向漸變</h3>
<div id="grad1"></div>
<p><strong>注意：</strong> Internet Explorer 9 及之前的版本不支持漸變。</p>
</body>
</html>???? ??? ???
